Aib conditioner



y 1935- w. BANDURSKI I 2,001,832

I AIR CONDITIONER Filed Aug. 29, 19:54

Patented May. 21, 1935 UNITED STATES PATENT OFFICE lppnazl lzfifiigmfi 741,968 1.2 Claims. (01. 257'244) My invention relates to improvements in gaseous fluid conditioners of the type adapted to either heat or cool air or other gaseous fluid prior to its being used.

An object of my invention is to provide an improved type of gaseous fluid conditioner.

A further object is to provide such a conditioner which will cool or heat the fluid quicker than will the present types of conditioners.

A further object is to provide a device of this character in which the heating or cooling units are arranged in a cone shape helical coil.

A further object is to provide such a device which is strong and sturdy in structure yet can be quickly and cheaply constructed by one skilled in the art. Other objects and advantages reside in the particular structure of my device, combination and arrangement of various parts and in the mode of operation,--all of which will be readily understandable to those skilled in the art upon reference to the drawing and detailed descrip tion forming a part of this specification.

In the drawing:

Figure 1 is a vertical longitudinal section through a preferred form of my device,

Figure 2 is a vertical cross section taken on the line 22 of Fig. l, and

Figure 3 is a fragmentary view of the forward end of the device.

With further reference to the drawing, wherein like reference characters have .been used throughout to designate like parts, 5 is a hollow cylindrical casing having a beaded forward edge 5.

' The forward edge 6 has also an inwardly extending flange l which prevents moisture from flowing out of the casing 5 at this end. While my preferred form of casing is cylindrical, it is to be understood that it could also be oval or even angular in cross section.

A series of zig-zag or otherwise formed supports 8 extend radially and inwardly from the forward edge of the casing 5 and may have their outer ends secured within the head 6, as clearly shown in Fig. 1, or they may be secured to the casing in any other suitable manner. The inner ends of the supports 8 are secured to and support the forward edge of a cone-shaped baffle B l in any suitable manner. As is readily seen, the apex of the baffle B is within the casing 5 and is supported by a member l4 carried by the casing or ,ii' mar ne supported in any other suitable mann rl be substituted and the motor may be supported the casing 5 is a and also an opening S centrally thereof. A motor M is carried by the wall 9 in any suitable manner and the shaft S of the motor extends into the casing 5 through the central opening S. A fan F is mounted on the inner end of theshaft and 6 is formed for drawing air into the casing 5 through the openings 9a in wall 9 and expelling it around the enlarged forward. edge of the bafile B. Of course, any suitable blower could be substituted for the one shown and it could be carried at the forwardend of the casing instead of at the rear. In the event that the wall 9 is eliminated, as may well be the case, a flange (not shown) similar to the flange l forthe forward edge may by a suitable spider.

A layer of felt or other insulating material In may be attached to the inside periphery of the casing and it will be noted that the lower longitudinal edges Illa and "lb of the material ID are spaced apart at the bottom of the casing to provide a channel l I. Thus, any moisture that may drip down from the bafile, coil or walls will be readily drained away through the drain I 2 in the rear of the channel I I. Tofacilitate draining, the forward floor of the channel II may be slightly higher than the rear fioor. A closure I3 is provided for the drain l2 but it is obvious that suitable plumbing connections could be substituted.

Heating or cooling of the air blown through the casing is accomplished by the cone-shaped helical coil l9 through which the heating or cooling fluid is circulated by any suitable means (not shown). It will be observed that the coil is is centrally supported in the casing 5 by offset portions [4a and Mb of the member H. of course, other supporting means could be substituted, however.

It is realized that it is old to heat or cool air by passing it over a coil containing a heating or cooling fluid. However, by arranging my coil in a cone-shape with the apex toward the fan, I have found that the air stream is much more thoroughly subjected to the action of the coils and that, consequently, fewer convolutions are necessary and the room or building is heated or cooled in a much quicker time. Hence, power is saved and a more economical device is achieved. My device acts on the air quicker because all the air drawn into the casing does not pass over the same convolutions, (see-Fig. 2) there are but minute ring-shaped openings through my casing from the front to rear and that substantially all the air is subjected to direct contact to at least one convolution of the coil [9. Then too, the cone-shaped baffle will act to deflect the more central parts of the air stream outwardly so that all portions of the stream pass on out of the casing in a more compact diverging annular stream.

By using a cone-shaped battle, I am able to 5 eject the air from my casing in a stream that is continuously diverging in all directions which results in the room or building being more quickly cooled or heated and also minimizes drafts. However, beneficial results have been obtained when the baille is entirely eliminated.

The bulk of the air which enters the casing is deflected outwardly from the center of the easing by the baflle B. However. it is apparent from Figure 1 that the extreme outer portion of the air stream is deflected outwardly by the deflected inner portion at a point adjacent the restricted outlet of the casing and that the entire stream emerges from the casing in the form of a constantly diverging annular stream.

By means of the baflle, none of the air ever gets very far from the convolutions while it is within the casing but by having the convolutions tapered to. conform to the shape of the ballle, I am able to bring the air even closer to the coil throughout its course.

It is readily understandable that many changes can be made in my device without departing from the spirit of the invention. For instance,

. the baflle and coil cones might be oval in section, or square, or polygonal or other changes in the form or structure might be made.

It is to be understood, therefore, that I do not limit myself to the precise form of casing, bafile illustrative rather than limitive.

Having thus described my invention,

I claim:

1. An air conditioner comprising a casing, an apertured end wall in said casing, a fan and motor carried by said wall for forcing a stream of air through said casing, a cone-shaped baflle axially carried within said casing and having its apex disposed toward said end wall, and air conditioning means for said air stream arranged within said casing in the form of a substantially coneshaped coil.

2. An air conditioner comprising a casing, an apertured end wall in said casing, a fan and motor carried by said wall for forcing a stream of air through said casing, a cone-shaped baffle axially carried within said casing and havingits apex disposed toward said end wall, and air conditioning means for said air stream arranged within said casing in the form of a substantially coneshaped coil arranged concentrically about and spaced from said baiile.

3. An air conditioner comprising a casing, an

apertured end wall in said casing, a fan and motor carried by said wall for forcing a stream of air through said casing, a cone-shaped baffle axially carried within said casing and having its apex disposed toward said end wall, and air conditioning means for said air stream, said means comprising a fluid conduit arranged in a tapered helical coil. V

4. An air conditioner comprising a casing, an apertured end wall in said casing, a fan and motor carried by said wall for forcing a stream of air through said casing, a cone-shaped baflle axially carried within said casing and having its apex disposed toward said end wall, and air conditioning means for said air stream, said means comprising a fluid conduit arranged in a tapered helical coil having the smallest convolutions 75 thereof disposed toward said end wall.

- and. coil and that the drawing and description are 5. An air conditioner comprising a casing, an apertured end wall in said casing, a fan and motor carried by said wall for forcing a stream of air through said casing, a cone-shaped baflle axially carried within said casing and having its apex disposed toward said end wall, and air conditioning means for said air stream, said means comprising a fluid conduit arranged in a tapered helical coil arranged concentrically about and spaced from said ballle.

6. An air conditioner comprising a hollow casing, an air inlet atone end of said casing and an air outlet at the other, means carried by one end of said casing for causing a stream of air to pass therethrough, a tapered bafile axially disposed within said casing and having its apex disposed towards said inlet end, and air conditioning means within said casing comprising a I ing means within said casing comprising a fluid conduit comprising a tapered helical coil concentrically arranged about said baflie and spaced therefrom.

8. An air conditioner comprising a hollow casing having an air inlet at one end and an air {outlet at the other end, means carried by said inlet end for forcing a stream of air through said casing, a baflle axially disposed in said casing for diverging said air stream in all directions at said outlet, and air conditioning means within said casing comprising a fluid conducting conduit arranged in the form of a tapered helical coil.

9. An-air conditioner comprising a hollow cascasing comprising a fluid conducting conduit arranged in the form of a tapered helical coil having the smallest convolutions thereof disposed towards said inlet end.

10. An air conditioner comprising a hollow casing, an air inlet at one end of'said casing and an air outlet at the other, means carried by one end of said casing for causing a stream of air to pass therethrough, and air conditioning means within said casing comprising a fluid conducting conduit arranged in the form of a tapered helical coil.

11 'An air conditioner comprising a hollow casing, an air inlet at one end of said casing and an air outlet at the other, means carried by one end of said casing for causing a stream of air to pass therethrough, and air conditioning means within said casing comprising a fluid conducting conduit arranged in the form of a tapered helical coil having the smallest convolutions thereof disposed toward said inlet end.

12. An air conditioner comprising a hollow 'outlet, and air conditioning means within said walls of said casing but having its lower edges spaced apart to provide a longitudinally extending channel along the bottom of said casing a drain at one end of said channel, a cone-shaped 5 baiile carried by the open end of said casing and having its apex disposed towards and axially of said end wall, and air conditioning means within said casing comprising a fluid conducting conduit in the form of a substantially cone-shaped helical coil concentrically arranged about said baille and spaced therefrom. 5

WALTER BANDURSKI. 

